Disable NETBIOS, LLMNR and NTLM authentication in CentOS7

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johnson.ng
Posts: 3
Joined: 2022/03/22 02:34:22

Disable NETBIOS, LLMNR and NTLM authentication in CentOS7

Post by johnson.ng » 2023/04/28 09:15:17

Hi Community,

I am being tasked to harden my production servers.
For Windows servers, I have no issues disabling NETBIOS, LLMNR and NTLM authentication.

I have tried to googled for answers but I can only find articles relating to Ubuntu and RHEL.
I am not well versed in CentOS. Appreciate if the community can guide me on how to disable the above please.

Thank you very much.
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tunk
Posts: 1206
Joined: 2017/02/22 15:08:17

Re: Disable NETBIOS, LLMNR and NTLM authentication in CentOS7

Post by tunk » 2023/04/28 09:42:22

CentOS 7 is a rebuild/clone of RHEL 7.
And I'm sure you know that CentOS 7 is EOL next summer.
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TrevorH
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Posts: 33216
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: Disable NETBIOS, LLMNR and NTLM authentication in CentOS7

Post by TrevorH » 2023/04/28 12:15:19

Pretty sure you only need to worry about those if you are running samba.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke
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